| 摘要 |
PROBLEM TO BE SOLVED: To smoothly conduct operations in the case that control directions are 2 dimensions or over. SOLUTION: A video signal on a master screen is fed from an input terminal 1 to a changeover switch 2 which switches the video signal to a video signal for a slave screen that is explained later and this video signal is fed to a picture tube 4 through an RGB drive circuit 3. Furthermore, the video signal of the slave screen is fed from an input terminal 5 to a slave screen signal forming circuit 6 where the signal is compressed into an optional size, the resulting signal is extracted in timing at an optional position and the video signal of the slave screen is formed. Moreover, a command signal from a command means is fed to a microcomputer 9 through an input terminal 8. The command signal is fed to a central processing unit 10 in the microcomputer 9 in which a control signal to decide a displayed position of the slave screen or the like is formed and the microcomputer 9 is provided with a means 11 that discriminates similarity and/or non-similarity of operation buttons to a part of this processing and a means 12 that decides a control reaction time so that the operations are smoothly performed. |
